mx.andersonenterprises.ca has no CNAME records.
Question and response
Question
dig mx.andersonenterprises.ca. NS
Answer
The response has no answer records.
Authority
andersonenterprises.ca. 3231 SOA dns.andersonenterprises.ca. hostmaster.andersonenterprises.ca. 1139366680 43200 3600 604800 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0